Burner



Feb. 6, 1934. v a N. DOLLJN ET AL ,945,934

BURN ER Filed Feb. 11, 1933 I 2 Sheets-Sheet l IN'VENTORSI burners, being particularly directed to burners Patented Feb. 6, 1934 UNITE D. STATES P AT E NT QFFIoE t I 1,945,531 f i1 National Gas Range Corporation, New I York, N. Y., a corporation of New York Application February 11, 1933. serial No. 656,265

Claims. (01. 158-116 This invention relates to improvements in for use in domestic and commercial gas ranges.

Broadly, it is an object of this invention to provide for a burner which, due to the novel forma tion of the gas chamber, the assembly and disposition of the combustion ports, and the applica tion of a bafile dome or head, will provide for an economically operable and highly efllcient device.

Further, it is an object of this invention to provide for a burner of the type described, wherein flames are developed and directed through two series of ports respectively horizontally and vertically disposed, the said flames, due to the con-' struction of the burner, being non-converging and being directed so as to respectively act upon the outer periphery and the center of the base of the vessel being heated, to thus attain optimum conditions forv heating.

Still further, it is an object of this invention to provide for a port assembly in a burner. wherein combustion ports are formed in horizontal and vertical planes for the development of a vertical flame from the vertical ports for heating the center 01' a vessel, and a substantially rlght-angu larly directed flame from the horizontal ports, thereby to heat the outer periphery of the base peripheral surfaces of vessels-being capable, upon actuation of the petcock, to be adiusted for various sizes 01! vessels. 1

Further, it is an object of this invention to provide a burner having a novel structural formation involving three distinct elements, either formed separately and assembled, or provided as sun further, it is 2 object ot this invention to provide, in conjunction with a burner o! the type described, a. novel hood formation and associated pilot light, the hood serving two purposes, 1 the first to provide a spillover trough for the burner, and second, to provide a niche in which. a jet normally burning. gas with a white flame will, due to the dispersion'ot gas passing from bodiment therefor'illustrated in the accompany- 1 ing drawings, in which Figure 1 is a side elevation ofthe burner. Figure 2 a plan view of the burner partly broken to show the interior thereof.

- Figure 3- is a side elevation in section taken along lines"33 of Figure 2.

Figure 4 is a plan view in section taken along 10 lines 4-4 of Figure 3.

Figure 5 is a rear view partly in section taken along lines 5--5 of Figure 2.

Figure 6 is a front view in sectiontaken along lines 6-6 oi! Figure 2. f

Referring to the reference characters in the drawings, numeral 10 represents a Venturi tube leading" from the petcock (not shown), the said Venturi tube being adapted to converge into conduit 11, which is spiral inform and defines the "gas chamber, the outer wall of the gas chamber H being defined by the wall 13 of burner body 12, 01 a vessel, the horizontal flame acting on the and "the inner wall of thegas chamber being deflnedby the outer wall 14 of the duct 15. The

said burner body 12 andthe duct 15 are interlocked by cooperation oi the interior threading tened as at 18 and is formedto provide an inwardly defined integral flange or rim 19, which serves to provide a battle for the swirling gas mixture passing through the gas'chamber towards the horizontal and vertical ports to be later described.

. The upper external portion-of wall 14 of the 1 duct 15 is shaped to provide a shouldered formation I incorporating a wide slightly angularly shaped surface 21 and a narrow'ang'ular surface 22, the purpose of which will be indicated, in conjunction with the port ring to be later described. 0n the interior and upper portion ofwall 14 of the ,bfaflle duct there are formed integral upstanding supports. 'or pillars 23. which have integrallyfformed therewith and carry at" their upper extremities. baille plate 24, which' is in the form oi an inverted cone, the base 25 or which is inthe form of a smooth dome, the apex 26. of which projects within the interior hollow portion of the duct,

capabilities and 60' i thereby providing for a directional displacement of air as indicated by the arrows in Figure 3, while at the same time, due to its proximity to the flame and vessel being heated, such baiile will of itself become heated and thus preheat incoming air passing through the interior of the duct and forming the secondary air for the vertical flame to be later described.

In assembly. the port ring 2'7 is disposed so that the ribs 33 thereof on the periphery thereofrest upon upper surface 18 of wall 12 of the burner body, then duct 15 is dropped through the central aperture of the port ring and the base thereof screwed together with the base of the burner body through their respective threaded sections 17 and 16; at this time surface 22 on the baille duct will rest against surface 31 of the ribs 29, while surface 21 of the baffle duct will rest against surface of the ribs 29, thereby definingthe vertical ports 40. As shown in Figure 5, horizon- ,tal ports 41 will be defined by'the upper surface 18 of the wall 12 of the burner body and the grooves 32 of the port ring.

When the device is assembled, as above stated, therespective elements are in v a perfect tight non-gas-leaking flt, and the gas mixture passing I from the Venturi tube 10 through the conduit 11 1 into the gas chamber in a swirl is discharged through the two ports 40 and 41 in respectively a vertical flame as at 42 anda substantially-horizontal flame, which is turned or bent upwardly in a substantially right-angular direction as at 43, with secondary air being supplied for the horizontal flame as shown by the arrows in Figure 5, and preheated secondary air for the vertical flame being supplied from the interior of the duct in the path of the arrows shown in Figure 3, the preheating being effected by the heat effect developed by the baflle 24.

Referring to all the figures in the drawings, but in particular to Figure 4, port ring 27 is in this instance formed of a die-casting in the shape of a substantially'flat apertured disk, the inner periphery of which has formed therealong a series of spaced semi-circular grooves 28 separated by ribs 29, which have merging faces 30 and 31 respectively so inclined to be symmetrical to surfaces 21 and 22 on Wall 14 ofthe duct for cooperating therewith. Along the outer periphery and on the lower surface of port ring 27 are formed a series of semi-circular grooves 32 disposed in spaced relationship and separated by ribs 33, the ribs and ports being of such depth as to permit the formation of a grooved annular channel 34 thereadjacent.

On. the burner body 12 there is formed intermediate of its depth, hood 35 having a spillover trough 36'and an car 37 provided with an aperture 38, so that the burner body may be fastened by any well-known manner to a support therefor. I

, Referring to Figure 6, there is disclosed therein the niche 38a defined by the hood 35a, in which there is disposed conduit 39 carrying pilot tube,

38a to form a thin flat jet or spray of gas which intermixes thoroughly with the secondary air disposed in the niche, producing a blue flame, although the normal flame without protection of such niche formation would be of a white flickering light. As is obvious from Figure 6, the flame from the pilot tube 40 will pass along to the hori zontal ports defined by the port forming ring.

It is obvious that various changes and modiflcations may be made to the details of construction without departing from the general spirit of the invention as set forth in the appended claims.

We claim:

1. A hollow gas burner having a gas inlet leading to its interior and having an air opening extending vertically through it, said burner being provided with two circumferential series of combustionports, one series of ports extending horizontally and the other series of ports extending vertically, and a bafile disposed above the air opening for directing and air for the vertical ports.

2. A gas burner, having a burner body and an air duct member cooperating therewith to propreheating secondary vide agas chamber, a port ring carried on said burner body and duct member above the gas chamber, and being provided with spaced horizontal and vertical ports on its respective outer and inner peripheral surfaces.

3. A gas burner, having a burner body and an air duct member cooperating therewith to grooves and interior vertical grooves on respectively its outer and inner peripheries, and adapted to restv upon and against the burner body and duct to provide horizontal and vertical combustion ports. a

5. In a gas burner'of the class described, a burner body and a hollow air duct, said burner body and duct being attachable to provide a gas chamber, and a port ring having horizontal grooves and interior vertical grooves adapted to rest upon and against the burner body and duct to provide horizontal and vertical combustion ports on respectively its outer and inner peripheries, and a baflle membersupported above the interior of the hollow duct for directing and preheating air passing through the duct'for service as secondary air with respect to flame formed in the vertical combustion ports.

6. In a gas burner of the class described, a burner body and a hollow air duct, said burner body and duct being attachable to provide a gas chamber, and a port ring having horizontal grooves and interior vertical grooves on respectively its outer and inner peripheries, and adaptedto rest upon and against the burner body and duct to provide horizontal and vertical combustion ports, and a hood disposed peripherally on said burner body to provide a drip catch-all.

7. In a gasburnerof the class described, a. burner body and a hollow air duct, said burner body and duct being attachable to provide a gas chamber, and a port ring having horizontal grooves and. interior vertical grooves on its respective outer and inner peripheries adapted to rest upon and against the burner body and duct to provide horizontal and vertical combustion ports, a hood disposed on the periphery of said burner body, and a pilot light positioned in a niche within said hood and adapted to distribute a flame against at least one of the horizontal ports.

8. In a gas burner of the class described, a gas chamber and a hollow air duct, a plurality of circumferential series of combustion ports, one series of ports being directed horizontally, and the other series of ports being directed vertically, and a baffle member carried in said hollow duct for directing and preheating secondary air.

9. In a gas burner of the class described, a gas chamber and ahollow air duct, a plurality of circumferential series of combustion ports, one series of ports being directed horizontally, and the other series of ports being directed vertically, and a battle member carried in said hollow duct for directing and preheating secondary air, said baffle member being in the-form of a cone, the apex of which depends downwardly within the hollow duct.

10. In a gas burner of the class described, a gas chamber and a hollow air duct, a plurality of circumferential series of combustion ports, one series of ports being directed horizontally, and the other series of ports being directed vertically, and a baflle member carried in said hollow duct for directing and preheating secondary air, said baflle member being in the form of a cone, the apex of which depends downwardly within the hollow duct, and the base of which is shaped to provide a smooth dome.

11. In a gas burner of the..class described, a burner chamber and a hollow, air duct, 2. ring having a plurality of series of ports on its respective peripheries, one of said port series being angularly directed with respect to the other, and a baille supported on said duct adjacent and above one of the series of ports, said bafile being adapted to direct and preheat air passing through the duct for service as secondary air with respect to the flame formed at the series of ports thereadjacent.

12. In a gas burner of the class described, a burner body and a hollow air duct, said burner body and duct being formed of cast iron, and 30 attachable to provide a gas chamber, and a diecast annular port ring having a plurality of series of spaced ports on its respective peripheries, the said series of ports being angularly disposed with respect to one another, and a baflle disposed 86 above and adjacent one of said series of ports for directing and preheating secondary air for service with respect thereto.

13. In a gas burner having a gas inlet leading to its interior and having an air opening ex- 90 tending vertically through it, said burner being provided with circumferential series of spaced combustion ports, a hood disposed on the periphery of said burner, and a pilot light positioned in a niche within said hood and adapted to distribute a flame against a combustion port.

14. In a gas burner having a gas inlet leading to its interior and having an air opening extending vertically through it, a baflie placed above said air opening for directing and preheating sec- 10 ondary air, said burner being provided with circumferential series of spaced combustion ports, a hood disposed on the periphery of said burner, and a pilot light positioned in a niche within said hood and adapted to distribute a flame against a combustion port.

15. In a gas burner of the class described, a gas chamber and a hollow air duct, a plurality of circumferential series of combustion ports, each series being directed at respectively different angles, and a balile member carried on said hollow duct for directing and preheating secondary air, for service with the gas mixture passing from the ports thereadjacent. I

EDGAR N. DOLIJN.

BENSON F. WADDELL.

III

Ill 

